Food4Rhino

NeosLighting is a simple plugin related to Equivalent Melanopic Lux (EML) calculation. It calculates the Melanopic Daylight Efficacy Ratio (MDER) based on input Spectral Power Distribution (SPD) data, and further derives the Circadian Stimulus (CS) from the EML value. Crucially, MDER serves as the key parameter for converting photopic illuminance values into Equivalent Melanopic Lux (EML).

Categories：Neos

Subcategories：BD Lighting

Development Environment:

Tested on Windows 11 with Rhino 8 SR20 (8.20.25157.13001, 2025-06-06) and Grasshopper 1.0.0008 (2025-06-06)

Developer：Hua-fei Huang, Yan-ying Lin